Door-operating mechanism



Feb. 26, 1929. I

S. B. HASELTINE DOOR OPERATING MECHANISM 2 Sheets-Sheet Inver zh Shayfifihazlizhz Q W & v My N46 my;

Filed June'lO, 1926 Feb. 26, 1929.

S. B. HASELTINE DOOR OPERATING MECHANISM 2 Sheets-Sheet 2 Filed June 10, 1926 W m B I K: x 0 4 F \w a Z Z/ Patented Feb. 26, 1929.

barren STATES EATENT oFFlcE.

STACY B. HASELTINE, OF CHICAGO, ILLINOIS, ASSIGNOR T0 H. MINER, INC., OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

DOOR-OPERATING MECHANISM.

Application filed June 10, 1926'. Serial" No. 115,059.

member swingably and reciprocably mounted, with means for imparting a lateral swinging movement to the lower end of said member while the upper end thereof is lim ited to substantially longitudinal movement, in conjunction with keeper means adapted to simultaneously engage with the upper and lower ends of said bar to effect opening and closing movement of the doo'r. 4 Other objects of my invention will more clearly appear from the description and claims hereinafter following.

In the drawings forming a part of this specification, 1 is a side elevation. of a 'portion of a refrigerator car showing my improvements in connection therewith. Fig. 2 is a vertical, sectional view on an enlarged scale, partly broken away, corresponding substantially to the line 2+2 of Fig. 1. And Fig. 3 is a partial sectional, partial elevational view of the lower keeper and lower end of the operating member, said view betaken substantially upon the line 33 of Fig. 1. I

In said drawings, the side of the car is shown as provided with a door frame 10 and. two pivoted doors 11 and 12. The doors have the usual beveled meeting edges and the customary insulation or packing is employed between the meeting edges of the doors themselves, and between the doors and the door frame. The doors 11 and 12 are mounted for swinging movement about vertical axes, being supported by suitable hinges 1313.

As shown in the drawings, the invention comprises broadly an operating bar or memher A; keepers BB; and actuating mechanism C.

The door operating member A is in the form of a substantially flat bar of rectangular cr0ss-section, said bar having its lower end bevelled at ll'tO permit the same to cooperate with the lower keeper B, while the upper end of said bar is provided with a lateral extension 15, which provides inclined inner and outer cam facesadapte'd to engage the upper keeper B as hereinafter more particular .y referred to.

' he bar A is preferable disposed vertically of the door 12 and adjacent the inner edge thereof. Said bar is mounted on said door by means of upper and lower guide brackets with an intermediate guide bracket therebe tween. The upper guide bracket 16' is fixed to the door adjacent the upper and forward edge thereof, and provides a guide which slidably confines the upper end of the operating bar A, the guide opening in said bracket being such as to permit some lateral swinging of the upper end of the bar A with respect thereto, but substantially limiting the upper end of the bar to longitudinal movement. 17 provides means for guiding the intermediate portion of the bar A, said bracket being of such character as to permit considerable lateral swinging of the bar' A with respect thereto, as well as permitting free longitudinal sliding movement of said bar. The lower bracket in reality forms part of the actuating mechanism and will be hereinafter described.

The keepers B are two in number, one of the same being secured to the frame above The intermediate bracket the top edge of the door, and the other being secured to the frame adjacent the bottom edge of the door. The bottom keeper B coinprises a member having flanges18 and 19 through which are extended suitable securing bolts. The lowerkeeper is also provided with a bottom wall 20. and with upstanding ch provide cam surfaces definportions whi ing a cam slo an angle to the dp openmg towar doors.

t 21, said slot being inclined at lane of the door frame and the meeting. edges of the The cam slot 21 is adapted for the reception of the lower end of the bar A. The upper keeper is of somewhat different construction from the lower keeper. Said upper keeper is provided with flanges 22 through which are extended suitable securing bolts, and said keeper is also provided with inclined portions projecting outwardly therefrom and forming a vertically arranged cam slot 23, the opposed cam surfaces of which are inclined upwardly and outwardly from the door frame to which the keeper is connected, said slot being adapted for the reception of the extension upon the operating bar A.

The flange portion 19 of the lower keeper B is extended to the left as shown in Fig. 1 beyond the free edge of the door 12 and has pivotally mounted thereon a latch member 24- adapted to coact with a plate 25 secured v to the door 11 adjacent the lower corner of the free edge thereof. The latch 24 serves to retain the door 11 in position when closed. The actuating means 0 include a bracket 26 having a rear wall 27 providing means by which the bracket is secured to the door 12. Said bracket is also provided with a front wall 28 and end walls 29, the bracket being of such construction that the lower end of the operating bar extends through the same and is permitted relatively great lateral swinging movement within the bracket. Pivotallymounted on the front wall 28 of the bracket by means of a projection 30 is a lever 31. Said lever is provided with a right angular extension 32, which when the doors are closed lies parallel with the operating member A. The lower end of the right angular portion 32 of the lever is pivotally connected to the bar A by means of the pivot pin 33, the arrangement being such that swinging of the lever will effect movement of the bar A. A latch 36 is pivotally mounted upon the lever 81 adjacent the bracket 26, said latch being adapted to ride over and drop behind a small catch formed on the bracket 36 as shown when the lever 31 is swung in a clockwise direction, so as to prevent return of the lever to its initial. position and maintain the bar A in elevated position, until. said latch is manually released to release the lever 31.

Associated with the handle of the lever is a supporting member 34, said member having an out-turned flange provided with an aperture adapted to coincide with a similar aperture in an offset position between the lever 31 and its handle as indicated at 3:").

In operation, assuming the doors to be closed as indicated in full lines in Fig. 1, and that it is desired to open the doors, the handle portion of the lever 81 is first tached from the locking mechanism, after which said lever is swung in a clockwise direction which will effect a combined lateral swinging and upward reciprocation of the lower end of the bar A, causing the lower end of said bar to traverse the cam surfaces of the lower keeper l3; simultaneously with this movement, the upper end of the bar moves substantially in a vertical direction so to traverse the cam surfaces of the upper cam slot 28. The combined move ment of the ends of the bar A in both swinging and longitudinal direction effects opening movement of the door, and in the same operation retracts the lower end of the bar A to a position which eliminates depending projections below the bottom edge of the door which would be likely to come into contact with loading platforms. When the door 12 has been opened, the latch 24l securing the door 11 may be released, and said door also swung open.

The closing movement of the door is effected by swinging the lever 31 in a counter-ciocl-;wise direction which causes lower ing of the bar A into position so that the opposite ends thereof engage their respective keepers, further movement of the lever causing the lower end of the bar A to travel substantially in a horizontal direction, so as to traverse the horizontally arranged cam surfaces of the lower keeper, while the direction of movement of the upper end of the bar A is substantially vertical, thus causing eflicient traverse of the upper end of said bar with the vertically disposed cam surfaces of the upper keeper, thereby effecting movement of the door 12 to tightly closed position.

While I have herein shown and described what I now consider the preferred manner of carrying out the invention, the same is merely illustrative, and T contemplate all changes and modifications that come within the scope of the claims appended hereto.

I claim;

1. In a door operating mechanism, the combination with a door frame providing a door opening and. a door; of a continuous, elongated, one-piece operating bar mounted on said door; co-operating means on said door for moving said bar and guiding the same to impart combined longitudinal, reciprocatory and lateral swinging movements to sair. bar; keeper means mounted on said frame at opposite cm s of said door opening, each of said keeper means ma-iwierating with one end of said bar and provided with spaced cam surfaces between which the corresponding end of the bar engages, said he per-s co-opcrating with said ineml'ier during the roci n'ocatory and lateral swinging thereof and dependent thereon to effect movements of said door in opening and closing directions.

2. In a door operating mechanism, the combination with a door frame and pivoted door; of an operating member; means for mounting said operating member on said door to permit longitudinal reciprocation thereof with respect to said door and to permit relatively small swinging movement of the upper end of said member and'relatively reater movement oft-he lower end of said member; means for imparting combined swinging and longitudinal movement to said bar; and keeper means mounted on said door frame adjacent the opposite ends of said operating member and coacting with said ends during combined longitudinal and swinging movement thereof to effect movement of said door in opening and closing directions.

3. In a door operating mechanism, the combination with a door frame and a pivoted door; of keeper means arranged adjacent the opposite edges of said door, one of said keeper means being provided with cam surfaces arranged at an angle to the cam surfaces of the other keeper means; an operating member mounted on said door and having its opposite ends mounted for combined lateral and longitudinal movement, one of said ends being confined to pro-dominantly longitudinal movement to traverse the cam surfaces of the corresponding keeper while the opposite end of said bar is permitted pie-dominantly lateral movement to effect traverse of the cam faces of the remaining keeper; and means'for imparting combined reciprocatory and lateral swinging movement to said operating member. r

4-. In a door operating mechanism of the character described, the combination with a door frame providing a door opening and a pivoted door; of a keeper mounted on said door frame adjacent the upper edge of said door and provided with inclined verti-, cally extending cam faces; a second keeper mounted upon said door frame adjacent the lower edge of said door, said keeper being provided with cam faces inclined outwardly from said door frame and arranged at an angle to said first cam faces; an operating bar mounted on said door for combined swinging and reciprocatory movement, the upper end of said bar being restricted to substantially longitudinal movement, while the lower end of said bar is permitted additional swinging movement, the upper and lower ends of said bar being adapted to engage.

the upper and lower keepers respectively; andmeans for lmparting the desired combined longitudinal and lateral swinging movement of said bar to cause traverseof.

said keepers and effect movement of said door in opening and closing directions.

5. In a door operating mechanism of the character described, the combination with a door frame providing a door opening and a pivoted door; of a keeper mounted on said door frame adjacent the upper edge of said.

door and provided with inclined vertically extending cam faces; the second keeper mountedupon said door frame adjacent the lower edge of said door, said keeper being provided with cam faces inclined outwardly from said door frame and arranged at an angle to said first cam-faces; an operating bar mounted on said door. forcombined swinging and longitudinally shifting movement, the upper end of said bar being restricted to substantially longitudinal move ment,-while the lower end of said bar is permitted additional swinging movement,

the upper and lower ends of said bar being adapted to engage the upper and lower keepers respectively; and a lever pivotally connected to said door adjacent the lower end of said operating member and provided with an angular crank pivotally connected to said member, whereby operation of said lever effects combined lateral swinging and longitudinal movement of said member.

6. In a door operating mechanism of the character described, the combination with a door frame and a pivoted door; of an elongated eontinuous operating bar mounted upon said door; guide means at one end of said bar for limiting lateral movement of said bar, but permitting longitudinal sliding movement thereof; keeper means mounted on said door frame provided with cam faces; and a lever pivotally mounted upon said door and provided with an angular crank portion pivotally connected to said bar adjacent said actuating portion and supporting said bar, said lever effecting lateral swinging and vertical reciprocating movement of the actuating portion of said member with reference to said keeper means upon actuation of said lever.

7. In a door operating mechanism of the I character described, the combination with a door frame and a pivoted door; of a rigid operating bar mounted upon said door for combined swinging and longitudinal reciprocatory movements; said bar having actuating portions at opposite ends rigid therewith; a lever pivotally mounted upon said door and provided with an angular crank portion pivotally connected to said bar adjacent one end thereof and supporting said bar and arranged to effect swinging and reciprocation of said member and actuating portions upon actuation of said lever; guide means for confining the bar adjacent the other end thereof against lateral movement and keeper means mounted on said door frame and cooperating with the actuating portions at opposite ends of said operating member to effect movement of said door in opening and closing directions upon actuation of said lever.

8. In a door operating mechanism of the character described, the combination with a door frame and a pivoted door; of keeper means mounted on said door frame adjacent the opposite edges thereof; continuously said door and to retract the lower end of said bar to a position Within the lower edge 1 of said door.

In Witness that I claim the foregoing I have hereunto subscribed my name this 20th day of May, 1926.

STACY B. HASELTINE. 

